Surface-initiated reversible addition-fragmentation chain transfer (SI-RAFT) polymerization was used to synthesize poly(methyl methacrylate) (PMMA) and poly[2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammoniumhydroxide (PMEDSAH) brushes grafted from reactive poly[p-xylylene] surfaces. The synthetic approach involved functionalization of substrates via chemical vapor deposition polymerization of an electron-deficient alkynyl-functionalized [2.2]paracyclophane derivative. An azide-functionalized RAFT agent was anchored to the resulting poly[(p-xylylene-4-methyl propiolate)-co-p-xylylene] films via copper-free click-chemistry. Subsequent SI-RAFT polymerization yielded PMMA and PMEDSAH films with narrow dispersity which was further tuned by varying the concentration of a sacrificial RAFT agent in solution. Polymer dispersity was determined by size exclusion chromatography to be in the range of 1.2–1.4 for both polymers. This work provides a novel surface modification strategy to decorate a wide range of different substrates with polymer brushes, thereby eliminating the need for cumbersome modification protocols, which so far had to be established for each substrate material independently.

表面引发的可逆加成-断裂链转移（SI-RAFT）聚合反应用于合成接枝的聚（甲基丙烯酸甲酯）（PMMA）和聚[2-（甲基丙烯酰氧基）乙基]二甲基-（3-磺丙基）氢氧化铵（PMEDSAH）刷来自反应性聚对二甲苯表面。合成方法涉及通过电子不足的炔基官能化的[2.2]对环环糊精衍生物的化学气相沉积聚合对底物进行官能化。叠氮化物官能化的RAFT试剂被锚定到所得到的聚[（p -xylylene -4-丙炔酸甲酯） -共- p -xylylene]膜通过无铜点击化学。随后的SI-RAFT聚合反应产生的PMMA和PMEDSAH膜具有较窄的分散度，可通过改变溶液中牺牲RAFT剂的浓度来进一步调节。通过尺寸排阻色谱法确定两种聚合物的聚合物分散度在1.2-1.4范围内。这项工作提供了一种新颖的表面改性策略，可以用聚合物刷装饰各种不同的基材，从而消除了繁琐的改性方案的需要，到目前为止，必须为每种基材单独建立这种方案。